Home / 1,373.16-1,894.35-1,079.28

Finding the Fourth Proportional to 1,373.16, 1,894.35 and 1,079.28

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Solution

The fourth proportional to 1,373.16, 1,894.35 and 1,079.28 is: 1,488.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373.16 : 1,894.35 = 1,079.28 : x
  2. Step 2: Convert to fraction form
    1,373.16/1,894.35 = 1,079.28/x
  3. Step 3: Cross multiply
    1,373.16x = 1,894.35 × 1,079.28
  4. Step 4: Simplify right side
    1,373.16x = 2,044,534.07
  5. Step 5: Solve for x
    x = 2,044,534.07/1,373.16
  6. Step 6: Final answer
    x = 1,488.93

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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.