Home / 5,407.18-8,112.28-1,709.32

Finding the Fourth Proportional to 5,407.18, 8,112.28 and 1,709.32

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Solution

The fourth proportional to 5,407.18, 8,112.28 and 1,709.32 is: 2,564.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.18 : 8,112.28 = 1,709.32 : x
  2. Step 2: Convert to fraction form
    5,407.18/8,112.28 = 1,709.32/x
  3. Step 3: Cross multiply
    5,407.18x = 8,112.28 × 1,709.32
  4. Step 4: Simplify right side
    5,407.18x = 13,866,482.45
  5. Step 5: Solve for x
    x = 13,866,482.45/5,407.18
  6. Step 6: Final answer
    x = 2,564.46

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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.