Home / 1,377.01-1,897.64-983.35

Finding the Fourth Proportional to 1,377.01, 1,897.64 and 983.35

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Solution

The fourth proportional to 1,377.01, 1,897.64 and 983.35 is: 1,355.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377.01 : 1,897.64 = 983.35 : x
  2. Step 2: Convert to fraction form
    1,377.01/1,897.64 = 983.35/x
  3. Step 3: Cross multiply
    1,377.01x = 1,897.64 × 983.35
  4. Step 4: Simplify right side
    1,377.01x = 1,866,034.81
  5. Step 5: Solve for x
    x = 1,866,034.81/1,377.01
  6. Step 6: Final answer
    x = 1,355.14

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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.