Home / 5,160.50-7,740.93-1,698.02

Finding the Fourth Proportional to 5,160.50, 7,740.93 and 1,698.02

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Solution

The fourth proportional to 5,160.50, 7,740.93 and 1,698.02 is: 2,547.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.50 : 7,740.93 = 1,698.02 : x
  2. Step 2: Convert to fraction form
    5,160.50/7,740.93 = 1,698.02/x
  3. Step 3: Cross multiply
    5,160.50x = 7,740.93 × 1,698.02
  4. Step 4: Simplify right side
    5,160.50x = 13,144,253.96
  5. Step 5: Solve for x
    x = 13,144,253.96/5,160.50
  6. Step 6: Final answer
    x = 2,547.09

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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.