Home / 2,848.71-3,931.70-1,730.40

Finding the Fourth Proportional to 2,848.71, 3,931.70 and 1,730.40

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Solution

The fourth proportional to 2,848.71, 3,931.70 and 1,730.40 is: 2,388.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,848.71 : 3,931.70 = 1,730.40 : x
  2. Step 2: Convert to fraction form
    2,848.71/3,931.70 = 1,730.40/x
  3. Step 3: Cross multiply
    2,848.71x = 3,931.70 × 1,730.40
  4. Step 4: Simplify right side
    2,848.71x = 6,803,413.68
  5. Step 5: Solve for x
    x = 6,803,413.68/2,848.71
  6. Step 6: Final answer
    x = 2,388.24

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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.