Home / 1,646.13-2,271.63-900.07

Finding the Fourth Proportional to 1,646.13, 2,271.63 and 900.07

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Solution

The fourth proportional to 1,646.13, 2,271.63 and 900.07 is: 1,242.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.13 : 2,271.63 = 900.07 : x
  2. Step 2: Convert to fraction form
    1,646.13/2,271.63 = 900.07/x
  3. Step 3: Cross multiply
    1,646.13x = 2,271.63 × 900.07
  4. Step 4: Simplify right side
    1,646.13x = 2,044,632.23
  5. Step 5: Solve for x
    x = 2,044,632.23/1,646.13
  6. Step 6: Final answer
    x = 1,242.08

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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.