Home / 2,875.66-3,968.52-1,867.57

Finding the Fourth Proportional to 2,875.66, 3,968.52 and 1,867.57

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Solution

The fourth proportional to 2,875.66, 3,968.52 and 1,867.57 is: 2,577.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.66 : 3,968.52 = 1,867.57 : x
  2. Step 2: Convert to fraction form
    2,875.66/3,968.52 = 1,867.57/x
  3. Step 3: Cross multiply
    2,875.66x = 3,968.52 × 1,867.57
  4. Step 4: Simplify right side
    2,875.66x = 7,411,488.90
  5. Step 5: Solve for x
    x = 7,411,488.90/2,875.66
  6. Step 6: Final answer
    x = 2,577.32

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1.5x scale

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.