Home / 4,298.76-6,448.01-1,220.76

Finding the Fourth Proportional to 4,298.76, 6,448.01 and 1,220.76

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Solution

The fourth proportional to 4,298.76, 6,448.01 and 1,220.76 is: 1,831.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,298.76 : 6,448.01 = 1,220.76 : x
  2. Step 2: Convert to fraction form
    4,298.76/6,448.01 = 1,220.76/x
  3. Step 3: Cross multiply
    4,298.76x = 6,448.01 × 1,220.76
  4. Step 4: Simplify right side
    4,298.76x = 7,871,466.58
  5. Step 5: Solve for x
    x = 7,871,466.58/4,298.76
  6. Step 6: Final answer
    x = 1,831.10

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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.