Home / 2,485.71-3,430.08-1,437.84

Finding the Fourth Proportional to 2,485.71, 3,430.08 and 1,437.84

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Solution

The fourth proportional to 2,485.71, 3,430.08 and 1,437.84 is: 1,984.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.71 : 3,430.08 = 1,437.84 : x
  2. Step 2: Convert to fraction form
    2,485.71/3,430.08 = 1,437.84/x
  3. Step 3: Cross multiply
    2,485.71x = 3,430.08 × 1,437.84
  4. Step 4: Simplify right side
    2,485.71x = 4,931,906.23
  5. Step 5: Solve for x
    x = 4,931,906.23/2,485.71
  6. Step 6: Final answer
    x = 1,984.10

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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.