Home / 5,312.61-7,330.76-3,075.19

Finding the Fourth Proportional to 5,312.61, 7,330.76 and 3,075.19

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Solution

The fourth proportional to 5,312.61, 7,330.76 and 3,075.19 is: 4,243.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.61 : 7,330.76 = 3,075.19 : x
  2. Step 2: Convert to fraction form
    5,312.61/7,330.76 = 3,075.19/x
  3. Step 3: Cross multiply
    5,312.61x = 7,330.76 × 3,075.19
  4. Step 4: Simplify right side
    5,312.61x = 22,543,469.21
  5. Step 5: Solve for x
    x = 22,543,469.21/5,312.61
  6. Step 6: Final answer
    x = 4,243.39

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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.