Home / 6,187.78-9,280.86-1,570.78

Finding the Fourth Proportional to 6,187.78, 9,280.86 and 1,570.78

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Solution

The fourth proportional to 6,187.78, 9,280.86 and 1,570.78 is: 2,355.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,187.78 : 9,280.86 = 1,570.78 : x
  2. Step 2: Convert to fraction form
    6,187.78/9,280.86 = 1,570.78/x
  3. Step 3: Cross multiply
    6,187.78x = 9,280.86 × 1,570.78
  4. Step 4: Simplify right side
    6,187.78x = 14,578,189.27
  5. Step 5: Solve for x
    x = 14,578,189.27/6,187.78
  6. Step 6: Final answer
    x = 2,355.96

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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.