Home / 1,370.47-2,055.67-383.28

Finding the Fourth Proportional to 1,370.47, 2,055.67 and 383.28

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Solution

The fourth proportional to 1,370.47, 2,055.67 and 383.28 is: 574.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370.47 : 2,055.67 = 383.28 : x
  2. Step 2: Convert to fraction form
    1,370.47/2,055.67 = 383.28/x
  3. Step 3: Cross multiply
    1,370.47x = 2,055.67 × 383.28
  4. Step 4: Simplify right side
    1,370.47x = 787,897.20
  5. Step 5: Solve for x
    x = 787,897.20/1,370.47
  6. Step 6: Final answer
    x = 574.91

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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.