Home / 2,637.02-3,955.20-788.12

Finding the Fourth Proportional to 2,637.02, 3,955.20 and 788.12

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Solution

The fourth proportional to 2,637.02, 3,955.20 and 788.12 is: 1,182.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.02 : 3,955.20 = 788.12 : x
  2. Step 2: Convert to fraction form
    2,637.02/3,955.20 = 788.12/x
  3. Step 3: Cross multiply
    2,637.02x = 3,955.20 × 788.12
  4. Step 4: Simplify right side
    2,637.02x = 3,117,172.22
  5. Step 5: Solve for x
    x = 3,117,172.22/2,637.02
  6. Step 6: Final answer
    x = 1,182.08

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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.