Home / 4,778.48-7,154.75-2,465.12

Finding the Fourth Proportional to 4,778.48, 7,154.75 and 2,465.12

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Solution

The fourth proportional to 4,778.48, 7,154.75 and 2,465.12 is: 3,690.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.48 : 7,154.75 = 2,465.12 : x
  2. Step 2: Convert to fraction form
    4,778.48/7,154.75 = 2,465.12/x
  3. Step 3: Cross multiply
    4,778.48x = 7,154.75 × 2,465.12
  4. Step 4: Simplify right side
    4,778.48x = 17,637,269.22
  5. Step 5: Solve for x
    x = 17,637,269.22/4,778.48
  6. Step 6: Final answer
    x = 3,690.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.