Home / 1,615.18-2,424.14-885.26

Finding the Fourth Proportional to 1,615.18, 2,424.14 and 885.26

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Solution

The fourth proportional to 1,615.18, 2,424.14 and 885.26 is: 1,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.18 : 2,424.14 = 885.26 : x
  2. Step 2: Convert to fraction form
    1,615.18/2,424.14 = 885.26/x
  3. Step 3: Cross multiply
    1,615.18x = 2,424.14 × 885.26
  4. Step 4: Simplify right side
    1,615.18x = 2,145,994.18
  5. Step 5: Solve for x
    x = 2,145,994.18/1,615.18
  6. Step 6: Final answer
    x = 1,328.64

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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.