Home / 5,055.81-6,977.01-2,931.75

Finding the Fourth Proportional to 5,055.81, 6,977.01 and 2,931.75

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Solution

The fourth proportional to 5,055.81, 6,977.01 and 2,931.75 is: 4,045.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055.81 : 6,977.01 = 2,931.75 : x
  2. Step 2: Convert to fraction form
    5,055.81/6,977.01 = 2,931.75/x
  3. Step 3: Cross multiply
    5,055.81x = 6,977.01 × 2,931.75
  4. Step 4: Simplify right side
    5,055.81x = 20,454,849.07
  5. Step 5: Solve for x
    x = 20,454,849.07/5,055.81
  6. Step 6: Final answer
    x = 4,045.81

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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.