Home / 5,143.02-7,714.54-1,856.12

Finding the Fourth Proportional to 5,143.02, 7,714.54 and 1,856.12

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Solution

The fourth proportional to 5,143.02, 7,714.54 and 1,856.12 is: 2,784.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.02 : 7,714.54 = 1,856.12 : x
  2. Step 2: Convert to fraction form
    5,143.02/7,714.54 = 1,856.12/x
  3. Step 3: Cross multiply
    5,143.02x = 7,714.54 × 1,856.12
  4. Step 4: Simplify right side
    5,143.02x = 14,319,111.98
  5. Step 5: Solve for x
    x = 14,319,111.98/5,143.02
  6. Step 6: Final answer
    x = 2,784.18

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.