Home / 7,710.40-10,640.39-4,353.35

Finding the Fourth Proportional to 7,710.40, 10,640.39 and 4,353.35

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Solution

The fourth proportional to 7,710.40, 10,640.39 and 4,353.35 is: 6,007.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710.40 : 10,640.39 = 4,353.35 : x
  2. Step 2: Convert to fraction form
    7,710.40/10,640.39 = 4,353.35/x
  3. Step 3: Cross multiply
    7,710.40x = 10,640.39 × 4,353.35
  4. Step 4: Simplify right side
    7,710.40x = 46,321,341.81
  5. Step 5: Solve for x
    x = 46,321,341.81/7,710.40
  6. Step 6: Final answer
    x = 6,007.64

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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.