Home / 5,267.78-7,901.58-1,570.02

Finding the Fourth Proportional to 5,267.78, 7,901.58 and 1,570.02

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Solution

The fourth proportional to 5,267.78, 7,901.58 and 1,570.02 is: 2,355.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,267.78 : 7,901.58 = 1,570.02 : x
  2. Step 2: Convert to fraction form
    5,267.78/7,901.58 = 1,570.02/x
  3. Step 3: Cross multiply
    5,267.78x = 7,901.58 × 1,570.02
  4. Step 4: Simplify right side
    5,267.78x = 12,405,638.63
  5. Step 5: Solve for x
    x = 12,405,638.63/5,267.78
  6. Step 6: Final answer
    x = 2,355.01

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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.