Home / 5,190.02-7,785.66-1,904.66

Finding the Fourth Proportional to 5,190.02, 7,785.66 and 1,904.66

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Solution

The fourth proportional to 5,190.02, 7,785.66 and 1,904.66 is: 2,857.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.02 : 7,785.66 = 1,904.66 : x
  2. Step 2: Convert to fraction form
    5,190.02/7,785.66 = 1,904.66/x
  3. Step 3: Cross multiply
    5,190.02x = 7,785.66 × 1,904.66
  4. Step 4: Simplify right side
    5,190.02x = 14,829,035.18
  5. Step 5: Solve for x
    x = 14,829,035.18/5,190.02
  6. Step 6: Final answer
    x = 2,857.22

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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.