Home / 3,048.02-4,572.32-856.74

Finding the Fourth Proportional to 3,048.02, 4,572.32 and 856.74

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Solution

The fourth proportional to 3,048.02, 4,572.32 and 856.74 is: 1,285.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,048.02 : 4,572.32 = 856.74 : x
  2. Step 2: Convert to fraction form
    3,048.02/4,572.32 = 856.74/x
  3. Step 3: Cross multiply
    3,048.02x = 4,572.32 × 856.74
  4. Step 4: Simplify right side
    3,048.02x = 3,917,302.30
  5. Step 5: Solve for x
    x = 3,917,302.30/3,048.02
  6. Step 6: Final answer
    x = 1,285.20

Related Problems

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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.