Home / 1,437.95-2,147.19-1,142.13

Finding the Fourth Proportional to 1,437.95, 2,147.19 and 1,142.13

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Solution

The fourth proportional to 1,437.95, 2,147.19 and 1,142.13 is: 1,705.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.95 : 2,147.19 = 1,142.13 : x
  2. Step 2: Convert to fraction form
    1,437.95/2,147.19 = 1,142.13/x
  3. Step 3: Cross multiply
    1,437.95x = 2,147.19 × 1,142.13
  4. Step 4: Simplify right side
    1,437.95x = 2,452,373.88
  5. Step 5: Solve for x
    x = 2,452,373.88/1,437.95
  6. Step 6: Final answer
    x = 1,705.46

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1.5x scale

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.