Home / 5,345.28-8,018.79-1,647.51

Finding the Fourth Proportional to 5,345.28, 8,018.79 and 1,647.51

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Solution

The fourth proportional to 5,345.28, 8,018.79 and 1,647.51 is: 2,471.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.28 : 8,018.79 = 1,647.51 : x
  2. Step 2: Convert to fraction form
    5,345.28/8,018.79 = 1,647.51/x
  3. Step 3: Cross multiply
    5,345.28x = 8,018.79 × 1,647.51
  4. Step 4: Simplify right side
    5,345.28x = 13,211,036.71
  5. Step 5: Solve for x
    x = 13,211,036.71/5,345.28
  6. Step 6: Final answer
    x = 2,471.53

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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.