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Finding the Fourth Proportional to 2,420.10, 3,627.66 and 957.24

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Solution

The fourth proportional to 2,420.10, 3,627.66 and 957.24 is: 1,434.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.10 : 3,627.66 = 957.24 : x
  2. Step 2: Convert to fraction form
    2,420.10/3,627.66 = 957.24/x
  3. Step 3: Cross multiply
    2,420.10x = 3,627.66 × 957.24
  4. Step 4: Simplify right side
    2,420.10x = 3,472,541.26
  5. Step 5: Solve for x
    x = 3,472,541.26/2,420.10
  6. Step 6: Final answer
    x = 1,434.88

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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.