Home / 3,870.64-5,341.44-2,298.76

Finding the Fourth Proportional to 3,870.64, 5,341.44 and 2,298.76

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Solution

The fourth proportional to 3,870.64, 5,341.44 and 2,298.76 is: 3,172.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870.64 : 5,341.44 = 2,298.76 : x
  2. Step 2: Convert to fraction form
    3,870.64/5,341.44 = 2,298.76/x
  3. Step 3: Cross multiply
    3,870.64x = 5,341.44 × 2,298.76
  4. Step 4: Simplify right side
    3,870.64x = 12,278,688.61
  5. Step 5: Solve for x
    x = 12,278,688.61/3,870.64
  6. Step 6: Final answer
    x = 3,172.26

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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.