Home / 1,526.40-2,286.90-1,294.20

Finding the Fourth Proportional to 1,526.40, 2,286.90 and 1,294.20

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Solution

The fourth proportional to 1,526.40, 2,286.90 and 1,294.20 is: 1,939.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.40 : 2,286.90 = 1,294.20 : x
  2. Step 2: Convert to fraction form
    1,526.40/2,286.90 = 1,294.20/x
  3. Step 3: Cross multiply
    1,526.40x = 2,286.90 × 1,294.20
  4. Step 4: Simplify right side
    1,526.40x = 2,959,705.98
  5. Step 5: Solve for x
    x = 2,959,705.98/1,526.40
  6. Step 6: Final answer
    x = 1,939.01

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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.