Home / 2,875.84-3,966.76-2,657.12

Finding the Fourth Proportional to 2,875.84, 3,966.76 and 2,657.12

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Solution

The fourth proportional to 2,875.84, 3,966.76 and 2,657.12 is: 3,665.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.84 : 3,966.76 = 2,657.12 : x
  2. Step 2: Convert to fraction form
    2,875.84/3,966.76 = 2,657.12/x
  3. Step 3: Cross multiply
    2,875.84x = 3,966.76 × 2,657.12
  4. Step 4: Simplify right side
    2,875.84x = 10,540,157.33
  5. Step 5: Solve for x
    x = 10,540,157.33/2,875.84
  6. Step 6: Final answer
    x = 3,665.07

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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.