Home / 7,089.10-9,782.48-3,901.77

Finding the Fourth Proportional to 7,089.10, 9,782.48 and 3,901.77

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Solution

The fourth proportional to 7,089.10, 9,782.48 and 3,901.77 is: 5,384.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089.10 : 9,782.48 = 3,901.77 : x
  2. Step 2: Convert to fraction form
    7,089.10/9,782.48 = 3,901.77/x
  3. Step 3: Cross multiply
    7,089.10x = 9,782.48 × 3,901.77
  4. Step 4: Simplify right side
    7,089.10x = 38,168,996.74
  5. Step 5: Solve for x
    x = 38,168,996.74/7,089.10
  6. Step 6: Final answer
    x = 5,384.18

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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.