Home / 2,746.86-4,123.03-1,287.06

Finding the Fourth Proportional to 2,746.86, 4,123.03 and 1,287.06

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Solution

The fourth proportional to 2,746.86, 4,123.03 and 1,287.06 is: 1,931.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,746.86 : 4,123.03 = 1,287.06 : x
  2. Step 2: Convert to fraction form
    2,746.86/4,123.03 = 1,287.06/x
  3. Step 3: Cross multiply
    2,746.86x = 4,123.03 × 1,287.06
  4. Step 4: Simplify right side
    2,746.86x = 5,306,586.99
  5. Step 5: Solve for x
    x = 5,306,586.99/2,746.86
  6. Step 6: Final answer
    x = 1,931.87

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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.