Home / 1,901.17-2,851.80-1,077.40

Finding the Fourth Proportional to 1,901.17, 2,851.80 and 1,077.40

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Solution

The fourth proportional to 1,901.17, 2,851.80 and 1,077.40 is: 1,616.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.17 : 2,851.80 = 1,077.40 : x
  2. Step 2: Convert to fraction form
    1,901.17/2,851.80 = 1,077.40/x
  3. Step 3: Cross multiply
    1,901.17x = 2,851.80 × 1,077.40
  4. Step 4: Simplify right side
    1,901.17x = 3,072,529.32
  5. Step 5: Solve for x
    x = 3,072,529.32/1,901.17
  6. Step 6: Final answer
    x = 1,616.13

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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.