Home / 2,117.60-3,176.40-1,707.55

Finding the Fourth Proportional to 2,117.60, 3,176.40 and 1,707.55

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Solution

The fourth proportional to 2,117.60, 3,176.40 and 1,707.55 is: 2,561.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.60 : 3,176.40 = 1,707.55 : x
  2. Step 2: Convert to fraction form
    2,117.60/3,176.40 = 1,707.55/x
  3. Step 3: Cross multiply
    2,117.60x = 3,176.40 × 1,707.55
  4. Step 4: Simplify right side
    2,117.60x = 5,423,845.94
  5. Step 5: Solve for x
    x = 5,423,845.94/2,117.60
  6. Step 6: Final answer
    x = 2,561.32

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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.