Home / 1,630.17-2,445.25-656.26

Finding the Fourth Proportional to 1,630.17, 2,445.25 and 656.26

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Solution

The fourth proportional to 1,630.17, 2,445.25 and 656.26 is: 984.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.17 : 2,445.25 = 656.26 : x
  2. Step 2: Convert to fraction form
    1,630.17/2,445.25 = 656.26/x
  3. Step 3: Cross multiply
    1,630.17x = 2,445.25 × 656.26
  4. Step 4: Simplify right side
    1,630.17x = 1,604,719.77
  5. Step 5: Solve for x
    x = 1,604,719.77/1,630.17
  6. Step 6: Final answer
    x = 984.39

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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.