Home / 5,637.02-7,778.81-3,119.08

Finding the Fourth Proportional to 5,637.02, 7,778.81 and 3,119.08

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Solution

The fourth proportional to 5,637.02, 7,778.81 and 3,119.08 is: 4,304.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637.02 : 7,778.81 = 3,119.08 : x
  2. Step 2: Convert to fraction form
    5,637.02/7,778.81 = 3,119.08/x
  3. Step 3: Cross multiply
    5,637.02x = 7,778.81 × 3,119.08
  4. Step 4: Simplify right side
    5,637.02x = 24,262,746.74
  5. Step 5: Solve for x
    x = 24,262,746.74/5,637.02
  6. Step 6: Final answer
    x = 4,304.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.