Home / 1,530.29-2,295.56-490.43

Finding the Fourth Proportional to 1,530.29, 2,295.56 and 490.43

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Solution

The fourth proportional to 1,530.29, 2,295.56 and 490.43 is: 735.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.29 : 2,295.56 = 490.43 : x
  2. Step 2: Convert to fraction form
    1,530.29/2,295.56 = 490.43/x
  3. Step 3: Cross multiply
    1,530.29x = 2,295.56 × 490.43
  4. Step 4: Simplify right side
    1,530.29x = 1,125,818.46
  5. Step 5: Solve for x
    x = 1,125,818.46/1,530.29
  6. Step 6: Final answer
    x = 735.69

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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.