Home / 2,860.18-4,286.40-1,298.24

Finding the Fourth Proportional to 2,860.18, 4,286.40 and 1,298.24

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Solution

The fourth proportional to 2,860.18, 4,286.40 and 1,298.24 is: 1,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.18 : 4,286.40 = 1,298.24 : x
  2. Step 2: Convert to fraction form
    2,860.18/4,286.40 = 1,298.24/x
  3. Step 3: Cross multiply
    2,860.18x = 4,286.40 × 1,298.24
  4. Step 4: Simplify right side
    2,860.18x = 5,564,775.94
  5. Step 5: Solve for x
    x = 5,564,775.94/2,860.18
  6. Step 6: Final answer
    x = 1,945.60

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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.