Home / 3,617.02-4,989.83-2,124.91

Finding the Fourth Proportional to 3,617.02, 4,989.83 and 2,124.91

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Solution

The fourth proportional to 3,617.02, 4,989.83 and 2,124.91 is: 2,931.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.02 : 4,989.83 = 2,124.91 : x
  2. Step 2: Convert to fraction form
    3,617.02/4,989.83 = 2,124.91/x
  3. Step 3: Cross multiply
    3,617.02x = 4,989.83 × 2,124.91
  4. Step 4: Simplify right side
    3,617.02x = 10,602,939.67
  5. Step 5: Solve for x
    x = 10,602,939.67/3,617.02
  6. Step 6: Final answer
    x = 2,931.40

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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.