Home / 5,055.36-6,976.84-2,931.68

Finding the Fourth Proportional to 5,055.36, 6,976.84 and 2,931.68

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Solution

The fourth proportional to 5,055.36, 6,976.84 and 2,931.68 is: 4,045.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055.36 : 6,976.84 = 2,931.68 : x
  2. Step 2: Convert to fraction form
    5,055.36/6,976.84 = 2,931.68/x
  3. Step 3: Cross multiply
    5,055.36x = 6,976.84 × 2,931.68
  4. Step 4: Simplify right side
    5,055.36x = 20,453,862.29
  5. Step 5: Solve for x
    x = 20,453,862.29/5,055.36
  6. Step 6: Final answer
    x = 4,045.98

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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.