Home / 3,311.30-4,569.60-1,818.98

Finding the Fourth Proportional to 3,311.30, 4,569.60 and 1,818.98

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Solution

The fourth proportional to 3,311.30, 4,569.60 and 1,818.98 is: 2,510.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.30 : 4,569.60 = 1,818.98 : x
  2. Step 2: Convert to fraction form
    3,311.30/4,569.60 = 1,818.98/x
  3. Step 3: Cross multiply
    3,311.30x = 4,569.60 × 1,818.98
  4. Step 4: Simplify right side
    3,311.30x = 8,312,011.01
  5. Step 5: Solve for x
    x = 8,312,011.01/3,311.30
  6. Step 6: Final answer
    x = 2,510.20

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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.