Home / 4,852.14-7,278.18-1,389.40

Finding the Fourth Proportional to 4,852.14, 7,278.18 and 1,389.40

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Solution

The fourth proportional to 4,852.14, 7,278.18 and 1,389.40 is: 2,084.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,852.14 : 7,278.18 = 1,389.40 : x
  2. Step 2: Convert to fraction form
    4,852.14/7,278.18 = 1,389.40/x
  3. Step 3: Cross multiply
    4,852.14x = 7,278.18 × 1,389.40
  4. Step 4: Simplify right side
    4,852.14x = 10,112,303.29
  5. Step 5: Solve for x
    x = 10,112,303.29/4,852.14
  6. Step 6: Final answer
    x = 2,084.09

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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.