Home / 2,989.60-4,465.27-2,707.74

Finding the Fourth Proportional to 2,989.60, 4,465.27 and 2,707.74

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Solution

The fourth proportional to 2,989.60, 4,465.27 and 2,707.74 is: 4,044.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.60 : 4,465.27 = 2,707.74 : x
  2. Step 2: Convert to fraction form
    2,989.60/4,465.27 = 2,707.74/x
  3. Step 3: Cross multiply
    2,989.60x = 4,465.27 × 2,707.74
  4. Step 4: Simplify right side
    2,989.60x = 12,090,790.19
  5. Step 5: Solve for x
    x = 12,090,790.19/2,989.60
  6. Step 6: Final answer
    x = 4,044.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.