Home / 2,927.79-4,385.18-2,103.59

Finding the Fourth Proportional to 2,927.79, 4,385.18 and 2,103.59

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Solution

The fourth proportional to 2,927.79, 4,385.18 and 2,103.59 is: 3,150.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.79 : 4,385.18 = 2,103.59 : x
  2. Step 2: Convert to fraction form
    2,927.79/4,385.18 = 2,103.59/x
  3. Step 3: Cross multiply
    2,927.79x = 4,385.18 × 2,103.59
  4. Step 4: Simplify right side
    2,927.79x = 9,224,588.35
  5. Step 5: Solve for x
    x = 9,224,588.35/2,927.79
  6. Step 6: Final answer
    x = 3,150.70

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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.