Home / 5,386.47-7,431.48-3,368.52

Finding the Fourth Proportional to 5,386.47, 7,431.48 and 3,368.52

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Solution

The fourth proportional to 5,386.47, 7,431.48 and 3,368.52 is: 4,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.47 : 7,431.48 = 3,368.52 : x
  2. Step 2: Convert to fraction form
    5,386.47/7,431.48 = 3,368.52/x
  3. Step 3: Cross multiply
    5,386.47x = 7,431.48 × 3,368.52
  4. Step 4: Simplify right side
    5,386.47x = 25,033,089.01
  5. Step 5: Solve for x
    x = 25,033,089.01/5,386.47
  6. Step 6: Final answer
    x = 4,647.40

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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.