Home / 1,410.24-2,113.78-531.90

Finding the Fourth Proportional to 1,410.24, 2,113.78 and 531.90

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Solution

The fourth proportional to 1,410.24, 2,113.78 and 531.90 is: 797.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.24 : 2,113.78 = 531.90 : x
  2. Step 2: Convert to fraction form
    1,410.24/2,113.78 = 531.90/x
  3. Step 3: Cross multiply
    1,410.24x = 2,113.78 × 531.90
  4. Step 4: Simplify right side
    1,410.24x = 1,124,319.58
  5. Step 5: Solve for x
    x = 1,124,319.58/1,410.24
  6. Step 6: Final answer
    x = 797.25

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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.