Home / 2,803.60-3,870.63-2,492.20

Finding the Fourth Proportional to 2,803.60, 3,870.63 and 2,492.20

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Solution

The fourth proportional to 2,803.60, 3,870.63 and 2,492.20 is: 3,440.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.60 : 3,870.63 = 2,492.20 : x
  2. Step 2: Convert to fraction form
    2,803.60/3,870.63 = 2,492.20/x
  3. Step 3: Cross multiply
    2,803.60x = 3,870.63 × 2,492.20
  4. Step 4: Simplify right side
    2,803.60x = 9,646,384.09
  5. Step 5: Solve for x
    x = 9,646,384.09/2,803.60
  6. Step 6: Final answer
    x = 3,440.71

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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.