Home / 5,538.18-8,312.13-3,075.78

Finding the Fourth Proportional to 5,538.18, 8,312.13 and 3,075.78

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Solution

The fourth proportional to 5,538.18, 8,312.13 and 3,075.78 is: 4,616.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.18 : 8,312.13 = 3,075.78 : x
  2. Step 2: Convert to fraction form
    5,538.18/8,312.13 = 3,075.78/x
  3. Step 3: Cross multiply
    5,538.18x = 8,312.13 × 3,075.78
  4. Step 4: Simplify right side
    5,538.18x = 25,566,283.21
  5. Step 5: Solve for x
    x = 25,566,283.21/5,538.18
  6. Step 6: Final answer
    x = 4,616.37

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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.