Home / 2,881.02-3,971.57-2,039.13

Finding the Fourth Proportional to 2,881.02, 3,971.57 and 2,039.13

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Solution

The fourth proportional to 2,881.02, 3,971.57 and 2,039.13 is: 2,811.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.02 : 3,971.57 = 2,039.13 : x
  2. Step 2: Convert to fraction form
    2,881.02/3,971.57 = 2,039.13/x
  3. Step 3: Cross multiply
    2,881.02x = 3,971.57 × 2,039.13
  4. Step 4: Simplify right side
    2,881.02x = 8,098,547.53
  5. Step 5: Solve for x
    x = 8,098,547.53/2,881.02
  6. Step 6: Final answer
    x = 2,811.00

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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.