Home / 2,528.32-3,491.20-1,783.12

Finding the Fourth Proportional to 2,528.32, 3,491.20 and 1,783.12

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Solution

The fourth proportional to 2,528.32, 3,491.20 and 1,783.12 is: 2,462.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.32 : 3,491.20 = 1,783.12 : x
  2. Step 2: Convert to fraction form
    2,528.32/3,491.20 = 1,783.12/x
  3. Step 3: Cross multiply
    2,528.32x = 3,491.20 × 1,783.12
  4. Step 4: Simplify right side
    2,528.32x = 6,225,228.54
  5. Step 5: Solve for x
    x = 6,225,228.54/2,528.32
  6. Step 6: Final answer
    x = 2,462.20

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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.