Home / 7,348.48-10,142.58-4,206.40

Finding the Fourth Proportional to 7,348.48, 10,142.58 and 4,206.40

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Solution

The fourth proportional to 7,348.48, 10,142.58 and 4,206.40 is: 5,805.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,348.48 : 10,142.58 = 4,206.40 : x
  2. Step 2: Convert to fraction form
    7,348.48/10,142.58 = 4,206.40/x
  3. Step 3: Cross multiply
    7,348.48x = 10,142.58 × 4,206.40
  4. Step 4: Simplify right side
    7,348.48x = 42,663,748.51
  5. Step 5: Solve for x
    x = 42,663,748.51/7,348.48
  6. Step 6: Final answer
    x = 5,805.79

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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.