Home / 2,430.22-3,644.38-948.74

Finding the Fourth Proportional to 2,430.22, 3,644.38 and 948.74

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Solution

The fourth proportional to 2,430.22, 3,644.38 and 948.74 is: 1,422.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.22 : 3,644.38 = 948.74 : x
  2. Step 2: Convert to fraction form
    2,430.22/3,644.38 = 948.74/x
  3. Step 3: Cross multiply
    2,430.22x = 3,644.38 × 948.74
  4. Step 4: Simplify right side
    2,430.22x = 3,457,569.08
  5. Step 5: Solve for x
    x = 3,457,569.08/2,430.22
  6. Step 6: Final answer
    x = 1,422.74

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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.