Home / 1,430.04-2,145.06-1,249.68

Finding the Fourth Proportional to 1,430.04, 2,145.06 and 1,249.68

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Solution

The fourth proportional to 1,430.04, 2,145.06 and 1,249.68 is: 1,874.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430.04 : 2,145.06 = 1,249.68 : x
  2. Step 2: Convert to fraction form
    1,430.04/2,145.06 = 1,249.68/x
  3. Step 3: Cross multiply
    1,430.04x = 2,145.06 × 1,249.68
  4. Step 4: Simplify right side
    1,430.04x = 2,680,638.58
  5. Step 5: Solve for x
    x = 2,680,638.58/1,430.04
  6. Step 6: Final answer
    x = 1,874.52

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Similar ratio
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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.