Home / 7,718.58-11,577.87-1,875.18

Finding the Fourth Proportional to 7,718.58, 11,577.87 and 1,875.18

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Solution

The fourth proportional to 7,718.58, 11,577.87 and 1,875.18 is: 2,812.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.58 : 11,577.87 = 1,875.18 : x
  2. Step 2: Convert to fraction form
    7,718.58/11,577.87 = 1,875.18/x
  3. Step 3: Cross multiply
    7,718.58x = 11,577.87 × 1,875.18
  4. Step 4: Simplify right side
    7,718.58x = 21,710,590.27
  5. Step 5: Solve for x
    x = 21,710,590.27/7,718.58
  6. Step 6: Final answer
    x = 2,812.77

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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.