Home / 7,756.30-10,703.70-4,219.51

Finding the Fourth Proportional to 7,756.30, 10,703.70 and 4,219.51

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Solution

The fourth proportional to 7,756.30, 10,703.70 and 4,219.51 is: 5,822.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,756.30 : 10,703.70 = 4,219.51 : x
  2. Step 2: Convert to fraction form
    7,756.30/10,703.70 = 4,219.51/x
  3. Step 3: Cross multiply
    7,756.30x = 10,703.70 × 4,219.51
  4. Step 4: Simplify right side
    7,756.30x = 45,164,369.19
  5. Step 5: Solve for x
    x = 45,164,369.19/7,756.30
  6. Step 6: Final answer
    x = 5,822.93

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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.