Home / 6,291.12-9,435.36-1,907.28

Finding the Fourth Proportional to 6,291.12, 9,435.36 and 1,907.28

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Solution

The fourth proportional to 6,291.12, 9,435.36 and 1,907.28 is: 2,860.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.12 : 9,435.36 = 1,907.28 : x
  2. Step 2: Convert to fraction form
    6,291.12/9,435.36 = 1,907.28/x
  3. Step 3: Cross multiply
    6,291.12x = 9,435.36 × 1,907.28
  4. Step 4: Simplify right side
    6,291.12x = 17,995,873.42
  5. Step 5: Solve for x
    x = 17,995,873.42/6,291.12
  6. Step 6: Final answer
    x = 2,860.52

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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.