Home / 5,647.10-7,801.84-3,888.08

Finding the Fourth Proportional to 5,647.10, 7,801.84 and 3,888.08

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Solution

The fourth proportional to 5,647.10, 7,801.84 and 3,888.08 is: 5,371.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,647.10 : 7,801.84 = 3,888.08 : x
  2. Step 2: Convert to fraction form
    5,647.10/7,801.84 = 3,888.08/x
  3. Step 3: Cross multiply
    5,647.10x = 7,801.84 × 3,888.08
  4. Step 4: Simplify right side
    5,647.10x = 30,334,178.07
  5. Step 5: Solve for x
    x = 30,334,178.07/5,647.10
  6. Step 6: Final answer
    x = 5,371.64

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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.