Home / 5,370.08-7,411.09-2,980.81

Finding the Fourth Proportional to 5,370.08, 7,411.09 and 2,980.81

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Solution

The fourth proportional to 5,370.08, 7,411.09 and 2,980.81 is: 4,113.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,370.08 : 7,411.09 = 2,980.81 : x
  2. Step 2: Convert to fraction form
    5,370.08/7,411.09 = 2,980.81/x
  3. Step 3: Cross multiply
    5,370.08x = 7,411.09 × 2,980.81
  4. Step 4: Simplify right side
    5,370.08x = 22,091,051.18
  5. Step 5: Solve for x
    x = 22,091,051.18/5,370.08
  6. Step 6: Final answer
    x = 4,113.73

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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.