Home / 1,420.08-2,129.06-956.56

Finding the Fourth Proportional to 1,420.08, 2,129.06 and 956.56

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Solution

The fourth proportional to 1,420.08, 2,129.06 and 956.56 is: 1,434.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420.08 : 2,129.06 = 956.56 : x
  2. Step 2: Convert to fraction form
    1,420.08/2,129.06 = 956.56/x
  3. Step 3: Cross multiply
    1,420.08x = 2,129.06 × 956.56
  4. Step 4: Simplify right side
    1,420.08x = 2,036,572.00
  5. Step 5: Solve for x
    x = 2,036,572.00/1,420.08
  6. Step 6: Final answer
    x = 1,434.12

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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.