Home / 1,427.22-2,140.32-502.53

Finding the Fourth Proportional to 1,427.22, 2,140.32 and 502.53

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Solution

The fourth proportional to 1,427.22, 2,140.32 and 502.53 is: 753.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427.22 : 2,140.32 = 502.53 : x
  2. Step 2: Convert to fraction form
    1,427.22/2,140.32 = 502.53/x
  3. Step 3: Cross multiply
    1,427.22x = 2,140.32 × 502.53
  4. Step 4: Simplify right side
    1,427.22x = 1,075,575.01
  5. Step 5: Solve for x
    x = 1,075,575.01/1,427.22
  6. Step 6: Final answer
    x = 753.62

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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.