Home / 1,585.02-2,377.26-430.50

Finding the Fourth Proportional to 1,585.02, 2,377.26 and 430.50

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Solution

The fourth proportional to 1,585.02, 2,377.26 and 430.50 is: 645.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585.02 : 2,377.26 = 430.50 : x
  2. Step 2: Convert to fraction form
    1,585.02/2,377.26 = 430.50/x
  3. Step 3: Cross multiply
    1,585.02x = 2,377.26 × 430.50
  4. Step 4: Simplify right side
    1,585.02x = 1,023,410.43
  5. Step 5: Solve for x
    x = 1,023,410.43/1,585.02
  6. Step 6: Final answer
    x = 645.68

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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.