Home / 7,547.70-10,415.68-4,190.34

Finding the Fourth Proportional to 7,547.70, 10,415.68 and 4,190.34

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Solution

The fourth proportional to 7,547.70, 10,415.68 and 4,190.34 is: 5,782.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,547.70 : 10,415.68 = 4,190.34 : x
  2. Step 2: Convert to fraction form
    7,547.70/10,415.68 = 4,190.34/x
  3. Step 3: Cross multiply
    7,547.70x = 10,415.68 × 4,190.34
  4. Step 4: Simplify right side
    7,547.70x = 43,645,240.53
  5. Step 5: Solve for x
    x = 43,645,240.53/7,547.70
  6. Step 6: Final answer
    x = 5,782.59

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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.