Home / 3,431.82-4,737.02-2,015.47

Finding the Fourth Proportional to 3,431.82, 4,737.02 and 2,015.47

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Solution

The fourth proportional to 3,431.82, 4,737.02 and 2,015.47 is: 2,782.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.82 : 4,737.02 = 2,015.47 : x
  2. Step 2: Convert to fraction form
    3,431.82/4,737.02 = 2,015.47/x
  3. Step 3: Cross multiply
    3,431.82x = 4,737.02 × 2,015.47
  4. Step 4: Simplify right side
    3,431.82x = 9,547,309.86
  5. Step 5: Solve for x
    x = 9,547,309.86/3,431.82
  6. Step 6: Final answer
    x = 2,782.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.