Home / 5,471.84-7,547.36-3,678.50

Finding the Fourth Proportional to 5,471.84, 7,547.36 and 3,678.50

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Solution

The fourth proportional to 5,471.84, 7,547.36 and 3,678.50 is: 5,073.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471.84 : 7,547.36 = 3,678.50 : x
  2. Step 2: Convert to fraction form
    5,471.84/7,547.36 = 3,678.50/x
  3. Step 3: Cross multiply
    5,471.84x = 7,547.36 × 3,678.50
  4. Step 4: Simplify right side
    5,471.84x = 27,762,907.63
  5. Step 5: Solve for x
    x = 27,762,907.63/5,471.84
  6. Step 6: Final answer
    x = 5,073.78

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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.