Home / 2,870.79-3,960.96-1,751.66

Finding the Fourth Proportional to 2,870.79, 3,960.96 and 1,751.66

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Solution

The fourth proportional to 2,870.79, 3,960.96 and 1,751.66 is: 2,416.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870.79 : 3,960.96 = 1,751.66 : x
  2. Step 2: Convert to fraction form
    2,870.79/3,960.96 = 1,751.66/x
  3. Step 3: Cross multiply
    2,870.79x = 3,960.96 × 1,751.66
  4. Step 4: Simplify right side
    2,870.79x = 6,938,235.39
  5. Step 5: Solve for x
    x = 6,938,235.39/2,870.79
  6. Step 6: Final answer
    x = 2,416.84

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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.