Home / 2,385.15-3,578.47-1,070

Finding the Fourth Proportional to 2,385.15, 3,578.47 and 1,070

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Solution

The fourth proportional to 2,385.15, 3,578.47 and 1,070 is: 1,605.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.15 : 3,578.47 = 1,070 : x
  2. Step 2: Convert to fraction form
    2,385.15/3,578.47 = 1,070/x
  3. Step 3: Cross multiply
    2,385.15x = 3,578.47 × 1,070
  4. Step 4: Simplify right side
    2,385.15x = 3,828,962.90
  5. Step 5: Solve for x
    x = 3,828,962.90/2,385.15
  6. Step 6: Final answer
    x = 1,605.33

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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.