Home / 5,220.05-7,830.55-1,710.08

Finding the Fourth Proportional to 5,220.05, 7,830.55 and 1,710.08

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Solution

The fourth proportional to 5,220.05, 7,830.55 and 1,710.08 is: 2,565.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.05 : 7,830.55 = 1,710.08 : x
  2. Step 2: Convert to fraction form
    5,220.05/7,830.55 = 1,710.08/x
  3. Step 3: Cross multiply
    5,220.05x = 7,830.55 × 1,710.08
  4. Step 4: Simplify right side
    5,220.05x = 13,390,859.29
  5. Step 5: Solve for x
    x = 13,390,859.29/5,220.05
  6. Step 6: Final answer
    x = 2,565.28

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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.