Home / 7,031.21-9,703.93-4,007.45

Finding the Fourth Proportional to 7,031.21, 9,703.93 and 4,007.45

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Solution

The fourth proportional to 7,031.21, 9,703.93 and 4,007.45 is: 5,530.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,031.21 : 9,703.93 = 4,007.45 : x
  2. Step 2: Convert to fraction form
    7,031.21/9,703.93 = 4,007.45/x
  3. Step 3: Cross multiply
    7,031.21x = 9,703.93 × 4,007.45
  4. Step 4: Simplify right side
    7,031.21x = 38,888,014.28
  5. Step 5: Solve for x
    x = 38,888,014.28/7,031.21
  6. Step 6: Final answer
    x = 5,530.77

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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.