Home / 2,875.53-4,278.30-2,865.81

Finding the Fourth Proportional to 2,875.53, 4,278.30 and 2,865.81

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Solution

The fourth proportional to 2,875.53, 4,278.30 and 2,865.81 is: 4,263.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.53 : 4,278.30 = 2,865.81 : x
  2. Step 2: Convert to fraction form
    2,875.53/4,278.30 = 2,865.81/x
  3. Step 3: Cross multiply
    2,875.53x = 4,278.30 × 2,865.81
  4. Step 4: Simplify right side
    2,875.53x = 12,260,794.92
  5. Step 5: Solve for x
    x = 12,260,794.92/2,875.53
  6. Step 6: Final answer
    x = 4,263.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.