Home / 5,821.20-8,730.48-1,661.13

Finding the Fourth Proportional to 5,821.20, 8,730.48 and 1,661.13

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Solution

The fourth proportional to 5,821.20, 8,730.48 and 1,661.13 is: 2,491.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,821.20 : 8,730.48 = 1,661.13 : x
  2. Step 2: Convert to fraction form
    5,821.20/8,730.48 = 1,661.13/x
  3. Step 3: Cross multiply
    5,821.20x = 8,730.48 × 1,661.13
  4. Step 4: Simplify right side
    5,821.20x = 14,502,462.24
  5. Step 5: Solve for x
    x = 14,502,462.24/5,821.20
  6. Step 6: Final answer
    x = 2,491.32

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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.