Home / 5,166.60-7,130.40-2,928.58

Finding the Fourth Proportional to 5,166.60, 7,130.40 and 2,928.58

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Solution

The fourth proportional to 5,166.60, 7,130.40 and 2,928.58 is: 4,041.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166.60 : 7,130.40 = 2,928.58 : x
  2. Step 2: Convert to fraction form
    5,166.60/7,130.40 = 2,928.58/x
  3. Step 3: Cross multiply
    5,166.60x = 7,130.40 × 2,928.58
  4. Step 4: Simplify right side
    5,166.60x = 20,881,946.83
  5. Step 5: Solve for x
    x = 20,881,946.83/5,166.60
  6. Step 6: Final answer
    x = 4,041.72

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1.5x scale

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.