Home / 1,857.58-2,562.81-1,139.48

Finding the Fourth Proportional to 1,857.58, 2,562.81 and 1,139.48

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Solution

The fourth proportional to 1,857.58, 2,562.81 and 1,139.48 is: 1,572.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.58 : 2,562.81 = 1,139.48 : x
  2. Step 2: Convert to fraction form
    1,857.58/2,562.81 = 1,139.48/x
  3. Step 3: Cross multiply
    1,857.58x = 2,562.81 × 1,139.48
  4. Step 4: Simplify right side
    1,857.58x = 2,920,276.48
  5. Step 5: Solve for x
    x = 2,920,276.48/1,857.58
  6. Step 6: Final answer
    x = 1,572.08

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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.