Home / 1,530.29-2,280.24-1,455.91

Finding the Fourth Proportional to 1,530.29, 2,280.24 and 1,455.91

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Solution

The fourth proportional to 1,530.29, 2,280.24 and 1,455.91 is: 2,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.29 : 2,280.24 = 1,455.91 : x
  2. Step 2: Convert to fraction form
    1,530.29/2,280.24 = 1,455.91/x
  3. Step 3: Cross multiply
    1,530.29x = 2,280.24 × 1,455.91
  4. Step 4: Simplify right side
    1,530.29x = 3,319,818.52
  5. Step 5: Solve for x
    x = 3,319,818.52/1,530.29
  6. Step 6: Final answer
    x = 2,169.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.