Home / 1,501.47-2,252.15-390.89

Finding the Fourth Proportional to 1,501.47, 2,252.15 and 390.89

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Solution

The fourth proportional to 1,501.47, 2,252.15 and 390.89 is: 586.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,501.47 : 2,252.15 = 390.89 : x
  2. Step 2: Convert to fraction form
    1,501.47/2,252.15 = 390.89/x
  3. Step 3: Cross multiply
    1,501.47x = 2,252.15 × 390.89
  4. Step 4: Simplify right side
    1,501.47x = 880,348.06
  5. Step 5: Solve for x
    x = 880,348.06/1,501.47
  6. Step 6: Final answer
    x = 586.32

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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.