Home / 4,981.56-6,875.22-2,885.16

Finding the Fourth Proportional to 4,981.56, 6,875.22 and 2,885.16

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Solution

The fourth proportional to 4,981.56, 6,875.22 and 2,885.16 is: 3,981.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.56 : 6,875.22 = 2,885.16 : x
  2. Step 2: Convert to fraction form
    4,981.56/6,875.22 = 2,885.16/x
  3. Step 3: Cross multiply
    4,981.56x = 6,875.22 × 2,885.16
  4. Step 4: Simplify right side
    4,981.56x = 19,836,109.74
  5. Step 5: Solve for x
    x = 19,836,109.74/4,981.56
  6. Step 6: Final answer
    x = 3,981.91

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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.