Home / 7,830.04-10,805.40-4,293.28

Finding the Fourth Proportional to 7,830.04, 10,805.40 and 4,293.28

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Solution

The fourth proportional to 7,830.04, 10,805.40 and 4,293.28 is: 5,924.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.04 : 10,805.40 = 4,293.28 : x
  2. Step 2: Convert to fraction form
    7,830.04/10,805.40 = 4,293.28/x
  3. Step 3: Cross multiply
    7,830.04x = 10,805.40 × 4,293.28
  4. Step 4: Simplify right side
    7,830.04x = 46,390,607.71
  5. Step 5: Solve for x
    x = 46,390,607.71/7,830.04
  6. Step 6: Final answer
    x = 5,924.70

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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.