Home / 5,427.81-7,528.68-5,283.78

Finding the Fourth Proportional to 5,427.81, 7,528.68 and 5,283.78

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Solution

The fourth proportional to 5,427.81, 7,528.68 and 5,283.78 is: 7,328.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.81 : 7,528.68 = 5,283.78 : x
  2. Step 2: Convert to fraction form
    5,427.81/7,528.68 = 5,283.78/x
  3. Step 3: Cross multiply
    5,427.81x = 7,528.68 × 5,283.78
  4. Step 4: Simplify right side
    5,427.81x = 39,779,888.81
  5. Step 5: Solve for x
    x = 39,779,888.81/5,427.81
  6. Step 6: Final answer
    x = 7,328.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.