Home / 4,415.20-6,590.36-4,123.36

Finding the Fourth Proportional to 4,415.20, 6,590.36 and 4,123.36

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Solution

The fourth proportional to 4,415.20, 6,590.36 and 4,123.36 is: 6,154.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,415.20 : 6,590.36 = 4,123.36 : x
  2. Step 2: Convert to fraction form
    4,415.20/6,590.36 = 4,123.36/x
  3. Step 3: Cross multiply
    4,415.20x = 6,590.36 × 4,123.36
  4. Step 4: Simplify right side
    4,415.20x = 27,174,426.81
  5. Step 5: Solve for x
    x = 27,174,426.81/4,415.20
  6. Step 6: Final answer
    x = 6,154.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.