Home / 1,510.22-2,266.20-816.89

Finding the Fourth Proportional to 1,510.22, 2,266.20 and 816.89

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Solution

The fourth proportional to 1,510.22, 2,266.20 and 816.89 is: 1,225.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510.22 : 2,266.20 = 816.89 : x
  2. Step 2: Convert to fraction form
    1,510.22/2,266.20 = 816.89/x
  3. Step 3: Cross multiply
    1,510.22x = 2,266.20 × 816.89
  4. Step 4: Simplify right side
    1,510.22x = 1,851,236.12
  5. Step 5: Solve for x
    x = 1,851,236.12/1,510.22
  6. Step 6: Final answer
    x = 1,225.81

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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.