Home / 2,088.02-3,130.20-788.54

Finding the Fourth Proportional to 2,088.02, 3,130.20 and 788.54

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Solution

The fourth proportional to 2,088.02, 3,130.20 and 788.54 is: 1,182.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.02 : 3,130.20 = 788.54 : x
  2. Step 2: Convert to fraction form
    2,088.02/3,130.20 = 788.54/x
  3. Step 3: Cross multiply
    2,088.02x = 3,130.20 × 788.54
  4. Step 4: Simplify right side
    2,088.02x = 2,468,287.91
  5. Step 5: Solve for x
    x = 2,468,287.91/2,088.02
  6. Step 6: Final answer
    x = 1,182.12

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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.