Home / 2,870.17-3,959.62-1,750.68

Finding the Fourth Proportional to 2,870.17, 3,959.62 and 1,750.68

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Solution

The fourth proportional to 2,870.17, 3,959.62 and 1,750.68 is: 2,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870.17 : 3,959.62 = 1,750.68 : x
  2. Step 2: Convert to fraction form
    2,870.17/3,959.62 = 1,750.68/x
  3. Step 3: Cross multiply
    2,870.17x = 3,959.62 × 1,750.68
  4. Step 4: Simplify right side
    2,870.17x = 6,932,023.16
  5. Step 5: Solve for x
    x = 6,932,023.16/2,870.17
  6. Step 6: Final answer
    x = 2,415.20

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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.