Home / 5,510.40-8,266.65-1,813.70

Finding the Fourth Proportional to 5,510.40, 8,266.65 and 1,813.70

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Solution

The fourth proportional to 5,510.40, 8,266.65 and 1,813.70 is: 2,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,510.40 : 8,266.65 = 1,813.70 : x
  2. Step 2: Convert to fraction form
    5,510.40/8,266.65 = 1,813.70/x
  3. Step 3: Cross multiply
    5,510.40x = 8,266.65 × 1,813.70
  4. Step 4: Simplify right side
    5,510.40x = 14,993,223.11
  5. Step 5: Solve for x
    x = 14,993,223.11/5,510.40
  6. Step 6: Final answer
    x = 2,720.90

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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.