Home / 5,775.96-7,970.52-3,386.40

Finding the Fourth Proportional to 5,775.96, 7,970.52 and 3,386.40

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Solution

The fourth proportional to 5,775.96, 7,970.52 and 3,386.40 is: 4,673.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.96 : 7,970.52 = 3,386.40 : x
  2. Step 2: Convert to fraction form
    5,775.96/7,970.52 = 3,386.40/x
  3. Step 3: Cross multiply
    5,775.96x = 7,970.52 × 3,386.40
  4. Step 4: Simplify right side
    5,775.96x = 26,991,368.93
  5. Step 5: Solve for x
    x = 26,991,368.93/5,775.96
  6. Step 6: Final answer
    x = 4,673.05

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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.