Home / 6,288.16-9,432.40-1,905.68

Finding the Fourth Proportional to 6,288.16, 9,432.40 and 1,905.68

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Solution

The fourth proportional to 6,288.16, 9,432.40 and 1,905.68 is: 2,858.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.16 : 9,432.40 = 1,905.68 : x
  2. Step 2: Convert to fraction form
    6,288.16/9,432.40 = 1,905.68/x
  3. Step 3: Cross multiply
    6,288.16x = 9,432.40 × 1,905.68
  4. Step 4: Simplify right side
    6,288.16x = 17,975,136.03
  5. Step 5: Solve for x
    x = 17,975,136.03/6,288.16
  6. Step 6: Final answer
    x = 2,858.57

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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.