Home / 1,863.17-2,570.70-1,490.91

Finding the Fourth Proportional to 1,863.17, 2,570.70 and 1,490.91

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Solution

The fourth proportional to 1,863.17, 2,570.70 and 1,490.91 is: 2,057.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.17 : 2,570.70 = 1,490.91 : x
  2. Step 2: Convert to fraction form
    1,863.17/2,570.70 = 1,490.91/x
  3. Step 3: Cross multiply
    1,863.17x = 2,570.70 × 1,490.91
  4. Step 4: Simplify right side
    1,863.17x = 3,832,678.29
  5. Step 5: Solve for x
    x = 3,832,678.29/1,863.17
  6. Step 6: Final answer
    x = 2,057.08

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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.