Home / 3,424.15-5,136.22-1,345.13

Finding the Fourth Proportional to 3,424.15, 5,136.22 and 1,345.13

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Solution

The fourth proportional to 3,424.15, 5,136.22 and 1,345.13 is: 2,017.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,424.15 : 5,136.22 = 1,345.13 : x
  2. Step 2: Convert to fraction form
    3,424.15/5,136.22 = 1,345.13/x
  3. Step 3: Cross multiply
    3,424.15x = 5,136.22 × 1,345.13
  4. Step 4: Simplify right side
    3,424.15x = 6,908,893.09
  5. Step 5: Solve for x
    x = 6,908,893.09/3,424.15
  6. Step 6: Final answer
    x = 2,017.70

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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.