Home / 5,355.40-8,030.12-1,656.60

Finding the Fourth Proportional to 5,355.40, 8,030.12 and 1,656.60

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Solution

The fourth proportional to 5,355.40, 8,030.12 and 1,656.60 is: 2,483.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355.40 : 8,030.12 = 1,656.60 : x
  2. Step 2: Convert to fraction form
    5,355.40/8,030.12 = 1,656.60/x
  3. Step 3: Cross multiply
    5,355.40x = 8,030.12 × 1,656.60
  4. Step 4: Simplify right side
    5,355.40x = 13,302,696.79
  5. Step 5: Solve for x
    x = 13,302,696.79/5,355.40
  6. Step 6: Final answer
    x = 2,483.98

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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.