Home / 5,678.12-8,510.47-2,554.45

Finding the Fourth Proportional to 5,678.12, 8,510.47 and 2,554.45

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Solution

The fourth proportional to 5,678.12, 8,510.47 and 2,554.45 is: 3,828.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.12 : 8,510.47 = 2,554.45 : x
  2. Step 2: Convert to fraction form
    5,678.12/8,510.47 = 2,554.45/x
  3. Step 3: Cross multiply
    5,678.12x = 8,510.47 × 2,554.45
  4. Step 4: Simplify right side
    5,678.12x = 21,739,542.43
  5. Step 5: Solve for x
    x = 21,739,542.43/5,678.12
  6. Step 6: Final answer
    x = 3,828.65

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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.