Home / 2,079.74-2,869.95-1,240.01

Finding the Fourth Proportional to 2,079.74, 2,869.95 and 1,240.01

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Solution

The fourth proportional to 2,079.74, 2,869.95 and 1,240.01 is: 1,711.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.74 : 2,869.95 = 1,240.01 : x
  2. Step 2: Convert to fraction form
    2,079.74/2,869.95 = 1,240.01/x
  3. Step 3: Cross multiply
    2,079.74x = 2,869.95 × 1,240.01
  4. Step 4: Simplify right side
    2,079.74x = 3,558,752.35
  5. Step 5: Solve for x
    x = 3,558,752.35/2,079.74
  6. Step 6: Final answer
    x = 1,711.16

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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.