Home / 2,864.85-3,952.69-1,802.76

Finding the Fourth Proportional to 2,864.85, 3,952.69 and 1,802.76

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Solution

The fourth proportional to 2,864.85, 3,952.69 and 1,802.76 is: 2,487.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.85 : 3,952.69 = 1,802.76 : x
  2. Step 2: Convert to fraction form
    2,864.85/3,952.69 = 1,802.76/x
  3. Step 3: Cross multiply
    2,864.85x = 3,952.69 × 1,802.76
  4. Step 4: Simplify right side
    2,864.85x = 7,125,751.42
  5. Step 5: Solve for x
    x = 7,125,751.42/2,864.85
  6. Step 6: Final answer
    x = 2,487.30

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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.