Home / 1,437.06-2,143.91-1,280.22

Finding the Fourth Proportional to 1,437.06, 2,143.91 and 1,280.22

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Solution

The fourth proportional to 1,437.06, 2,143.91 and 1,280.22 is: 1,909.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.06 : 2,143.91 = 1,280.22 : x
  2. Step 2: Convert to fraction form
    1,437.06/2,143.91 = 1,280.22/x
  3. Step 3: Cross multiply
    1,437.06x = 2,143.91 × 1,280.22
  4. Step 4: Simplify right side
    1,437.06x = 2,744,670.06
  5. Step 5: Solve for x
    x = 2,744,670.06/1,437.06
  6. Step 6: Final answer
    x = 1,909.92

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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.