Home / 5,605.78-8,409.77-1,657.10

Finding the Fourth Proportional to 5,605.78, 8,409.77 and 1,657.10

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Solution

The fourth proportional to 5,605.78, 8,409.77 and 1,657.10 is: 2,485.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,605.78 : 8,409.77 = 1,657.10 : x
  2. Step 2: Convert to fraction form
    5,605.78/8,409.77 = 1,657.10/x
  3. Step 3: Cross multiply
    5,605.78x = 8,409.77 × 1,657.10
  4. Step 4: Simplify right side
    5,605.78x = 13,935,829.87
  5. Step 5: Solve for x
    x = 13,935,829.87/5,605.78
  6. Step 6: Final answer
    x = 2,485.98

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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.