Home / 5,215.24-7,824.46-1,752.20

Finding the Fourth Proportional to 5,215.24, 7,824.46 and 1,752.20

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Solution

The fourth proportional to 5,215.24, 7,824.46 and 1,752.20 is: 2,628.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.24 : 7,824.46 = 1,752.20 : x
  2. Step 2: Convert to fraction form
    5,215.24/7,824.46 = 1,752.20/x
  3. Step 3: Cross multiply
    5,215.24x = 7,824.46 × 1,752.20
  4. Step 4: Simplify right side
    5,215.24x = 13,710,018.81
  5. Step 5: Solve for x
    x = 13,710,018.81/5,215.24
  6. Step 6: Final answer
    x = 2,628.84

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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.