Home / 5,009.19-6,913.20-3,120.93

Finding the Fourth Proportional to 5,009.19, 6,913.20 and 3,120.93

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Solution

The fourth proportional to 5,009.19, 6,913.20 and 3,120.93 is: 4,307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,009.19 : 6,913.20 = 3,120.93 : x
  2. Step 2: Convert to fraction form
    5,009.19/6,913.20 = 3,120.93/x
  3. Step 3: Cross multiply
    5,009.19x = 6,913.20 × 3,120.93
  4. Step 4: Simplify right side
    5,009.19x = 21,575,607.42
  5. Step 5: Solve for x
    x = 21,575,607.42/5,009.19
  6. Step 6: Final answer
    x = 4,307.20

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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.