Home / 1,617.20-2,421.48-846.08

Finding the Fourth Proportional to 1,617.20, 2,421.48 and 846.08

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Solution

The fourth proportional to 1,617.20, 2,421.48 and 846.08 is: 1,266.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.20 : 2,421.48 = 846.08 : x
  2. Step 2: Convert to fraction form
    1,617.20/2,421.48 = 846.08/x
  3. Step 3: Cross multiply
    1,617.20x = 2,421.48 × 846.08
  4. Step 4: Simplify right side
    1,617.20x = 2,048,765.80
  5. Step 5: Solve for x
    x = 2,048,765.80/1,617.20
  6. Step 6: Final answer
    x = 1,266.86

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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.