Home / 3,685.95-5,529.06-1,220.99

Finding the Fourth Proportional to 3,685.95, 5,529.06 and 1,220.99

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Solution

The fourth proportional to 3,685.95, 5,529.06 and 1,220.99 is: 1,831.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.95 : 5,529.06 = 1,220.99 : x
  2. Step 2: Convert to fraction form
    3,685.95/5,529.06 = 1,220.99/x
  3. Step 3: Cross multiply
    3,685.95x = 5,529.06 × 1,220.99
  4. Step 4: Simplify right side
    3,685.95x = 6,750,899.32
  5. Step 5: Solve for x
    x = 6,750,899.32/3,685.95
  6. Step 6: Final answer
    x = 1,831.52

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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.