Home / 5,715.09-8,574.63-2,385.18

Finding the Fourth Proportional to 5,715.09, 8,574.63 and 2,385.18

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Solution

The fourth proportional to 5,715.09, 8,574.63 and 2,385.18 is: 3,578.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.09 : 8,574.63 = 2,385.18 : x
  2. Step 2: Convert to fraction form
    5,715.09/8,574.63 = 2,385.18/x
  3. Step 3: Cross multiply
    5,715.09x = 8,574.63 × 2,385.18
  4. Step 4: Simplify right side
    5,715.09x = 20,452,035.98
  5. Step 5: Solve for x
    x = 20,452,035.98/5,715.09
  6. Step 6: Final answer
    x = 3,578.60

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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.