Home / 2,875.55-4,311.28-1,393.18

Finding the Fourth Proportional to 2,875.55, 4,311.28 and 1,393.18

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Solution

The fourth proportional to 2,875.55, 4,311.28 and 1,393.18 is: 2,088.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.55 : 4,311.28 = 1,393.18 : x
  2. Step 2: Convert to fraction form
    2,875.55/4,311.28 = 1,393.18/x
  3. Step 3: Cross multiply
    2,875.55x = 4,311.28 × 1,393.18
  4. Step 4: Simplify right side
    2,875.55x = 6,006,360.55
  5. Step 5: Solve for x
    x = 6,006,360.55/2,875.55
  6. Step 6: Final answer
    x = 2,088.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.