Home / 1,530.25-2,295.07-749.91

Finding the Fourth Proportional to 1,530.25, 2,295.07 and 749.91

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Solution

The fourth proportional to 1,530.25, 2,295.07 and 749.91 is: 1,124.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.25 : 2,295.07 = 749.91 : x
  2. Step 2: Convert to fraction form
    1,530.25/2,295.07 = 749.91/x
  3. Step 3: Cross multiply
    1,530.25x = 2,295.07 × 749.91
  4. Step 4: Simplify right side
    1,530.25x = 1,721,095.94
  5. Step 5: Solve for x
    x = 1,721,095.94/1,530.25
  6. Step 6: Final answer
    x = 1,124.72

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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.