Home / 2,013.07-2,778.17-1,128.92

Finding the Fourth Proportional to 2,013.07, 2,778.17 and 1,128.92

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Solution

The fourth proportional to 2,013.07, 2,778.17 and 1,128.92 is: 1,558.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.07 : 2,778.17 = 1,128.92 : x
  2. Step 2: Convert to fraction form
    2,013.07/2,778.17 = 1,128.92/x
  3. Step 3: Cross multiply
    2,013.07x = 2,778.17 × 1,128.92
  4. Step 4: Simplify right side
    2,013.07x = 3,136,349.01
  5. Step 5: Solve for x
    x = 3,136,349.01/2,013.07
  6. Step 6: Final answer
    x = 1,558.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.