Home / 6,897.23-9,518.40-3,913.19

Finding the Fourth Proportional to 6,897.23, 9,518.40 and 3,913.19

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Solution

The fourth proportional to 6,897.23, 9,518.40 and 3,913.19 is: 5,400.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,897.23 : 9,518.40 = 3,913.19 : x
  2. Step 2: Convert to fraction form
    6,897.23/9,518.40 = 3,913.19/x
  3. Step 3: Cross multiply
    6,897.23x = 9,518.40 × 3,913.19
  4. Step 4: Simplify right side
    6,897.23x = 37,247,288.13
  5. Step 5: Solve for x
    x = 37,247,288.13/6,897.23
  6. Step 6: Final answer
    x = 5,400.33

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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.