Home / 7,690.18-10,612.45-4,153.39

Finding the Fourth Proportional to 7,690.18, 10,612.45 and 4,153.39

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Solution

The fourth proportional to 7,690.18, 10,612.45 and 4,153.39 is: 5,731.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.18 : 10,612.45 = 4,153.39 : x
  2. Step 2: Convert to fraction form
    7,690.18/10,612.45 = 4,153.39/x
  3. Step 3: Cross multiply
    7,690.18x = 10,612.45 × 4,153.39
  4. Step 4: Simplify right side
    7,690.18x = 44,077,643.71
  5. Step 5: Solve for x
    x = 44,077,643.71/7,690.18
  6. Step 6: Final answer
    x = 5,731.68

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.